ICP DAS USA ISaGRAF VP-23W7, Руководство пользователя

Страница: 192 / 192

ISaGRAF WinCE ViewPAC User Manual , V.1.6 , 1/2017 by ICP DAS
Ap-32
Appendix L How to Detect the Status of Dual Battery and the
Ethernet Port
NOTICE:
Please power off the Controller before replacing the battery ; it may cause permanent damage if the
battery accidently touches other metal electronic parts.
The ViewPAC equips a 512 KB SRAM with dual battery design to retain the data even in the case of total
power loss. This dual battery design allows for the replacement of one of the batteries without losing
power and thus not losing the data stored in the memory. (
Warning: Please do not take out these two
batteries at the same time or the data will be lost during this period of non-power. )

Use “R_MB_ADR” function to Detect the Status of Dual Battery
Use the Function “ R_MB_ADR ” and assign its parameter “ADR” as “ 9992 ” and “ 9993 ” to read the
batteries’ status. Show as the 1
st
and 2
nd
line of the LD program listed as below.
ADR number “9992” : the status of battery number 1.
ADR number “9993” : the status of battery number 2.

Use “R_MB_ADR” function to Detect the Status of Ethernet port
Use the Function “ R_MB_ADR ” and assign its parameter “ADR” as “ 9987 ” to read the status of the
Ethernet ports. Show as the 3
rd
line of the LD program listed as below.
ADR number “9987” : the status of LAN1.
Name Type Attrib. ADR Description
batery1 Integer Internal 9992 Detect the status of battery 1.
batery2 Integer Internal 9993 Detect the status of battery 2.
lan1 Binary Internal 9987 Detect the status of LAN1.
After executing the program:
1.
The return values for parameters “batery1” & “batery2” status:
"99" : Power ok, no require to replace the battery at the moment.
"0" : Low power status; please replace the battery as soon as possible.
2. The return values for parameters “lan1” status:
"1" : ok.
"0" : broken-line.